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5.4 Uses and dangers of EM radiation

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Question 25
F

A student records three proposed uses of infrared radiation.

P: carrying signals along optical fibres Q: detecting a person with a thermal imaging camera R: revealing fluorescent security markings on bank notes

Which correction makes all three entries accurate?

[1]
A

Keep Q and R; change P to microwaves.

B

Keep P and R; change Q to ultraviolet.

C

Keep P and Q; change R to ultraviolet.

D

Keep P and Q; change R to microwaves.

Markscheme

5.4 Uses and dangers of EM radiation Questions

  1. GCSE
  2. /Physics
  3. /5.4 Uses and dangers of EM radiation

104 exam-style questions on Edexcel GCSE Physics 5.4 Uses and dangers of EM radiation, covering 5.4.1 Dangers of electromagnetic radiation, 5.4.2 Uses of electromagnetic radiation, 5.4.3 Radio waves and oscillations in circuits, and 5.4.4 Changes in atoms and nuclei generating radiation. Each one has a worked solution and a mark scheme showing where the marks go.

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